<template>
  <div class="app-container">
    课程列表

    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名称"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option value="Normal" label="已发布"/>
          <el-option value="Draft" label="未发布"/>
        </el-select>
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getList2()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      :data="list"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="title" label="课程名称" width="80" />

      <el-table-column label="课程状态" width="80">
        <template slot-scope="scope">
          {{ scope.row.status==='Normal'?'已发布':'未发布' }}
        </template>
      </el-table-column>

      <el-table-column prop="lessonNum" label="课时数" />

      <el-table-column prop="price" label="价格" width="160"/>

      <el-table-column prop="viewCount" label="浏览数量" width="60" />

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">

          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程的基本信息</el-button>
          </router-link>

          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程大纲</el-button>
          </router-link>

          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

  <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getList2"
    />

  </div>
</template>

<script>
import course from '@/api/edu/course.js'

export default {
    data(){//定义方法
        return {
            list:null,//查询之后返回结果
            page:1,//当前页
            limit:6,//每页记录数
            total:0,//总记录数
            courseQuery:{}//条件封装对象
        }
    },
    created(){//渲染之前执行，调用methods方法
        // this.getList()
        this.getList2()
    },
    methods:{//调用teacher.js方法
    //   getList(){//讲师列表方法
    // //   this.page=page
    // //         course.getTeacherListPage(this.page,this.limit,this.teacherQuery)
    //     course.getListCourse()
    //     .then(response => {
    //         // console.log(response)
    //         this.list = response.data.list
          
    //     })
    //     .catch(error => {
    //         console.log(error)
            
    //     })

        
    // },
     getList2(page=1){
         this.page=page
            course.getCourseListPage(this.page,this.limit,this.courseQuery)
        .then(response => {
            // console.log(response)
            // this.list = response.data.list
            this.list = response.data.rows
            this.total = response.data.total
            console.log(this.list)  
            console.log(this.total)
        })
        .catch(error => {
            console.log(error)
            
        })
     },

    resetData() {
        
        this.courseQuery = {}
        this.getList2()
        
    },
   
    removeDataById(id){
         this.$confirm('此操作将永久删除讲师记录, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).then(() => {  //点击确定，执行then方法
                //调用删除的方法
                course.deleteTeacherId(id)
                    .then(response =>{//删除成功
                    //提示信息
                    this.$message({
                        type: 'success',
                        message: '删除成功!'
                    });
                    //回到列表页面
                    this.getList()
                })
            }) //点击取消，执行catch方法
    }
  }
   
}
</script>
